Symptoms - Instrument Cluster. Chevrolet PJJ 2000

For 1990-2009 cars

Important:

1. Perform A Diagnostic System Check - Instrument Cluster before using the symptom tables in order to verify that all of the following are true:

• | There are no DTCs set.

• | The control module(s) can communicate via the class 2 serial data link.

2. Review the system operation in order to familiarize yourself with the system functions. Refer to Instrument Cluster Circuit Description.

### Visual/Physical Inspection

• | Inspect for aftermarket devices which could affect the operation of the instrument cluster or audible warnings system. Refer to Checking Aftermarket Accessories in Wiring Systems.

• | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

• | For any indicator relating to fluid level, perform a visual inspection of the fluid level before beginning diagnosis.

• | Verify that the indicators work properly during the bulb check.

### Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent and Poor Connections in Wiring Systems.

### Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose a symptom that does not set a DTC:

• | Instrument Cluster Inoperative

• | Engine Coolant Temperature Gauge Inaccurate or Inoperative

• | Fuel Gauge Inaccurate or Inoperative

• | Odometer Does Not Switch Between Trip and Season

• | Speedometer and/or Odometer Inoperative

• | Tachometer Inoperative

• | Engine Oil Pressure Indicator Inoperative

• | SERVICE VEHICLE SOON Indicator Inoperative